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|Title: ||Luminescence of LaF3:Ln3+ Nanocrystal Dispersions in Ionic Liquids|
|Authors: ||Lunstroot, Kyra|
Martens, Johan A.
|Issue Date: ||2009|
|Citation: ||Journal of Physical Chemistry C, 113 (31), p. 13532-13538|
|Abstract: ||Ionic liquids were used as solvents for dispersing luminescent lanthanide-doped LaF3:Ln3+ nanocrystals (Ln3+ ) Eu3+ and Nd3+). To increase the solubility of the inorganic nanoparticles in the ionic liquids, the nanocrystals were prepared with different stabilizing ligands, i.e., citrate, N,N,N-trimethylglycine (betaine), and lauryldi- methylglycine (lauryl betaine). LaF3:5%Ln3+:betaine could successfully be dispersed in 1-butyl-1-methylpyr- rolidinium bis(trifluoromethylsulfonyl)imide [C4mpyr][Tf2N], 1-butyl-1-methylpyrrolidinium trifluoromethane- sulfonate [C4mpyr][TfO], and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C4mim][Tf2N] but only in limited amounts. Red photoluminescence was observed for the europium(III)-containing nanoparticles and near-infrared luminescence for the neodymium(III)-containing systems.|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
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